Pi 1 pulsations associated with substorms and their conjugate behavior
Short period geomagnetic pulsations associated with substorms in the frequency range from about 0.1 to 0.4Hz are investigated using the dynamic spectrum analysis technique, and it was found that these Pi 1 pulsations are excited simultaneously with Pi 2 pulsations and they show a clear conjugate beh...
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Faculty of Science, Tohoku University
1987
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ftnipr:oai:nipr.repo.nii.ac.jp:00002155 2023-05-15T17:10:59+02:00 Pi 1 pulsations associated with substorms and their conjugate behavior Yoshio Kato Yutaka Tonegawa 1987-03 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=2155 http://id.nii.ac.jp/1291/00002155/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2155&item_no=1&attribute_id=18&file_no=1 en eng Faculty of Science, Tohoku University Department of Aeronautics and Astronautics, Tokai University National Institute of Polar Research https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=2155 http://id.nii.ac.jp/1291/00002155/ AA00733561 Memoirs of National Institute of Polar Research. Special issue, 47, 92-96(1987-03) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2155&item_no=1&attribute_id=18&file_no=1 Departmental Bulletin Paper P(論文) 1987 ftnipr 2022-11-19T19:41:20Z Short period geomagnetic pulsations associated with substorms in the frequency range from about 0.1 to 0.4Hz are investigated using the dynamic spectrum analysis technique, and it was found that these Pi 1 pulsations are excited simultaneously with Pi 2 pulsations and they show a clear conjugate behavior. These results will suggest that Pi 1 pulsations might be ion-cyclotron waves generated in the geomagnetic tail due to a drastic change of geomagnetic field configuration in the course of a substorm. Report Memoirs of National Institute of Polar Research Polar Research National Institute of Polar Research Repository, Japan |
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Open Polar |
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National Institute of Polar Research Repository, Japan |
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ftnipr |
language |
English |
description |
Short period geomagnetic pulsations associated with substorms in the frequency range from about 0.1 to 0.4Hz are investigated using the dynamic spectrum analysis technique, and it was found that these Pi 1 pulsations are excited simultaneously with Pi 2 pulsations and they show a clear conjugate behavior. These results will suggest that Pi 1 pulsations might be ion-cyclotron waves generated in the geomagnetic tail due to a drastic change of geomagnetic field configuration in the course of a substorm. |
format |
Report |
author |
Yoshio Kato Yutaka Tonegawa |
spellingShingle |
Yoshio Kato Yutaka Tonegawa Pi 1 pulsations associated with substorms and their conjugate behavior |
author_facet |
Yoshio Kato Yutaka Tonegawa |
author_sort |
Yoshio Kato |
title |
Pi 1 pulsations associated with substorms and their conjugate behavior |
title_short |
Pi 1 pulsations associated with substorms and their conjugate behavior |
title_full |
Pi 1 pulsations associated with substorms and their conjugate behavior |
title_fullStr |
Pi 1 pulsations associated with substorms and their conjugate behavior |
title_full_unstemmed |
Pi 1 pulsations associated with substorms and their conjugate behavior |
title_sort |
pi 1 pulsations associated with substorms and their conjugate behavior |
publisher |
Faculty of Science, Tohoku University |
publishDate |
1987 |
url |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=2155 http://id.nii.ac.jp/1291/00002155/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2155&item_no=1&attribute_id=18&file_no=1 |
genre |
Memoirs of National Institute of Polar Research Polar Research |
genre_facet |
Memoirs of National Institute of Polar Research Polar Research |
op_relation |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=2155 http://id.nii.ac.jp/1291/00002155/ AA00733561 Memoirs of National Institute of Polar Research. Special issue, 47, 92-96(1987-03) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2155&item_no=1&attribute_id=18&file_no=1 |
_version_ |
1766067818623664128 |